title: The bear paw: a radiologic sign for congenital ureteropelvic junction obstruction.
abstract: This article defines a new radiographic descriptor of high-grade hydronephrosis suggestive of ureteropelvic junction obstruction that is easily recognized by urologists and non-urologists alike. This is useful information for medical personnel participating in the management of children with hydronephrosis.
authors.affiliation: Wayne State University, Department of Urology, 4160 John R. Street, Suite 1017, Detroit, MI 48201, USA. terlecki@hotmail.com
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Terlecki
authors.forename: Gordon A
authors.initials: GA
authors.lastname: McLorie